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VOLUME 26 (1977) | ISSUE 9 | PAGE 651
Investigation of the interaction of 23S1 metastable He atoms with H2 molecules by the method of optical orientation of the atoms
Optical orientation of helium atoms was used to investigate the reaction of ionization of molecular hydrogen by 23Si metastable helium atoms. The temperature dependence of the total ionization cross section is determined in the temperature interval 77-300 K. It is established that this cross section decreases sharply with decreasing temperature.